Design and Near-Field Analysis of X-Band Linear/Circular Polarizer

X-밴드 선형/원형 편파 변환기의 설계 및 근거리장 해석

  • 서창용 (충남대학교 전파공학과) ;
  • 정명수 (충남대학교 전파공학과) ;
  • 박동철 (충남대학교 전파공학과)
  • Published : 2004.08.01


In this paper, we proposed the grating parallel plate waveguide structure for converting a linearly polarized wave to a circularly polarized wave. For the design of the polarizer, the moment method and Floquet's theorem are applied under two assumptions that the incident wave is a plane wave and the structure is infinitely periodic. In order for the more precise design, we performed the near-field analysis for the finite polarizer structure using MATLAB. By comparing with the measured results obtained by the near-field arrangement, we verified the correctness of our near-field analysis. By taking the ideal assumptions considered in the initial design procedure into account, newly designed modified dimensions for the polarizer was suggested which give improved performance.


Polarizer;Grating Structure;Moment Method;Floquet′s Theorem;Near-Field Analysis


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